Leptospirosis in Réunion. Report for the first half of 2025.

Key Points

  • A late seasonal surge (February) of limited scope (114 cases) in 2025

  • Cases in all municipalities on the island, with nearly half in the southern part of the island

  • A comparable incidence rate between the southern and eastern sectors

  • Clear predominance among males

  • A clear predominance among adults

  • Only 1 in 3 cases reports a profession at risk of exposure

  • Frequent hospitalization, with one-third of cases requiring critical care

  • More than half of suspected cases of infection are linked to agricultural work and/or livestock farming

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